○○○ synchronous ⪢⪢
Because the moon's period of
rotation is equal to its period of revolution, that is to say, because the moon takes the same amount of time to spin as it does to orbit the earth, we from the earth only ever see one face of the moon.
http://qindex.info/i.php?x=14015
○○○ heliocentric ⪢⪢
In a heliocentric model the Sun, not the Earth, is in the center and all other objects including the Earth orbit the Sun. In this model the Earth is moving in two ways. It revolves arround the Sun and it also
rotates on an axis.
→ spin
http://qindex.info/i.php?x=14014
○○○ 1054 ⪢⪢
This new
rotating power-sharing agreement will be the root cause for several generations' numerous internal wars that will exhaust and divide the Kievan Rus'.
#will_would
http://qindex.info/i.php?x=12942
○○○ spin ⪢⪢
Once swallowed, the smaller star continued to orbit within the larger one which eventually led to the larger star
rotating so fast that its mass was spun outwards creating the nebula.
http://qindex.info/i.php?x=19932
○○○ each ⪢⪢
In this example, we're asked to estimate the number of degrees each of the shaded figures has been
rotated and state the direction of the
rotation.
#math
http://qindex.info/i.php?x=20619